Re: [Xen-devel] Live Migration of Linux Desktop

[Thorolf Godawa <nospam@xxxxxxxxx>]

Hi,

> migrate your "desktop" between home and work, whilst maintaining a 
> cache of *most* disk state at both sites. It'd also be useful when 
> transferring a virtual machine between your desktop and your laptop, 
> for instance. 
there are just some "little" problems:

During migration between two different platforms it can often happen, 
depending on the CPU-type and actual CPU-state that the migration fails 
and the VM on the destination-system crashes.
Second problem is that for migration you need a shared device for the 
image. You can use the harddrive of laptop for sharing via NFS but 
actually it's not very usefull because then you can directly work on the 
laptop.
And the other scenario, making snapshots in some interval is not the 
best idea too, because the saved CPU- and memory-state and the actual 
harddisc-content you have later are out of sync. With this everything 
between data-loss and machine-crash is possible!
--

Chau y hasta luego,

Thorolf

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